Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.atmosenv.2016.07.029 |
Regional prediction of carbon isotopes in soil carbonates for Asian dust source tracer | |
Chen, Bing1,2; Cui, Xinjuan1; Wang, Yaqiang3 | |
通讯作者 | Chen, Bing |
来源期刊 | ATMOSPHERIC ENVIRONMENT
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ISSN | 1352-2310 |
EISSN | 1873-2844 |
出版年 | 2016 |
卷号 | 142页码:1-8 |
英文摘要 | Dust particles emitted from deserts and semi-arid lands in northern China cause particulate pollution that increases the burden of disease particularly for urban population in East Asia. The stable carbon isotopes (delta C-13) of carbonates in soils and dust aerosols in northern China were investigated. We found that the delta C-13 of carbonates in surface soils in northern China showed clearly the negative correlation (R-2 = 0.73) with Normalized Difference Vegetation Index (NDVI). Using Moderate Resolution Imaging Spectroradiometer (MODIS) satellite-derived NDVI, we predicted the regional distribution of delta C-13 of soil carbonates in deserts, sandy lands, and steppe areas. The predictions show the mean delta C-13 of -0.4 +/- 0.7 parts per thousand in soil carbonates in Taklimakan Desert and Gobi Deserts, and the isotope values decrease to -3.3 +/- 1.1 parts per thousand in sandy lands. The increase in vegetation coverage depletes C-13 in soil carbonates, thus the steppe areas are predicted by the lowest delta C-13 levels (-8.1 +/- 1.7 parts per thousand). The measurements of atmospheric dust samples at eight sites showed that the Asian dust sources were well assigned by the C-13 mapping in surface soils. Predicting C-13 in large geographical areas with fine resolution offers a cost-effective tracer to monitor dust emissions from sandy lands and steppe areas which show an increasing role in Asian dust loading driven by climate change and human activities. (C) 2016 Elsevier Ltd. All rights reserved. |
英文关键词 | Soil carbonates Carbon isotopes NDVI Prediction Asian dust Source tracer |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000383293100001 |
WOS关键词 | NORTHERN CHINA ; STORM EVENTS ; CLIMATE ; DESERT ; MORTALITY ; AEROSOLS ; KOREA ; NDVI |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/191614 |
作者单位 | 1.Shandong Univ, Environm Res Inst, 27 Shanda Nanlu, Jinan 250100, Peoples R China; 2.Collaborat Innovat Ctr Climate Change, Nanjing, Jiangsu, Peoples R China; 3.Chinese Acad Meteorol Sci, CMA, Key Lab Atmospher Chem, 46 Zhong Guan Cun S Ave, Beijing 100081, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Bing,Cui, Xinjuan,Wang, Yaqiang. Regional prediction of carbon isotopes in soil carbonates for Asian dust source tracer[J],2016,142:1-8. |
APA | Chen, Bing,Cui, Xinjuan,&Wang, Yaqiang.(2016).Regional prediction of carbon isotopes in soil carbonates for Asian dust source tracer.ATMOSPHERIC ENVIRONMENT,142,1-8. |
MLA | Chen, Bing,et al."Regional prediction of carbon isotopes in soil carbonates for Asian dust source tracer".ATMOSPHERIC ENVIRONMENT 142(2016):1-8. |
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